[Bug 2989] New: chrt applet: -m option is not working properly

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=2989

           Summary: chrt applet: -m option is not working properly
           Product: Busybox
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: Other
        AssignedTo: unassigned at busybox.net
        ReportedBy: zinosat at tiscali.it
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


if set, -m option should print minimum and maximum valid priorities, then exit

/ # chrt -m
BusyBox v1.19.0.git (2010-12-18 21:01:15 CET) multi-call binary.

Usage: chrt [-prfom] [PRIO] [PID | PROG ARGS]

Change scheduling priority and class for a process

Options:
    -p    Operate on PID
    -r    Set SCHED_RR class
    -f    Set SCHED_FIFO class
    -o    Set SCHED_OTHER class
    -m    Show min/max priorities

It prints the right ouput if an argument is passed to -m


/ # chrt -m foo
SCHED_FIFO min/max priority    : 1/99
SCHED_RR min/max priority    : 1/99
SCHED_OTHER min/max priority    : 0/0

I put some debugging printouts, and noticed that when -m is passed without
argument, applet exits at getopt32() (at least does not get past it); I guess
then there's something wrong with applet_opts ("+mprfo"), or with
opt_complementary  ("-1:r--fo:f--ro:o--rf") or with getopt32()

regards,
Davide

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